Pull of a slider for a slide fastener

ABSTRACT

A pull of a slider, which can be attached to a pull-attaching portion formed integrally on a slider body, and can be replaced easily. A pull-attaching portion is provided integrally on a slider body, and a pull-connecting ring has an opening on a side of its ring-like frame body. The size of the opening is formed not smaller than the thickness or width of the pull-attaching portion. Holding portions extending in parallel along side edges of the opening and a fitting protruded portion of the pull main body are fitted with each other and connected by a pin so as to be freely pivotable. Upon replacement of the pull, the pin is removed.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a pull of a slider for a slide fastener of a post-installed type in which the pull is attached after a slider main body is made, said pull being capable of being attached to or removed from a slider body of the slider for the slide fastener.

[0003] 2. Prior Art

[0004] Conventionally, there are pulls having beautiful ornaments or special marks or letters, and these pulls are attached to slider bodies so as to meet customers' demands. For example, a slider having a gap is prepared, a size of said gap suitable for a pull to be inserted between a slider body and a pull-attaching portion and then, a pull which a user demands is inserted through the gap and attached. Then, the gap is sealed by plastically deforming the pull-attaching portion. In this type of the slider, the shape of the pull-attaching portion is a cantilever type. Thus, if an excessive force is applied to the pull, the pull-attaching portion is opened and deformed so that the pull slips out.

[0005] To solve this problem, it is preferable to form the pull-attaching portion and the slider body integrally so that there may be no gaps between the pull-attaching portion and the body. Thus, Japanese Utility Model Application Laid-Open No. 64-43707 has disclosed a slider which allows the pull 111 to be attached to a slider body 101 later, said slider body 101 having no gap between the pull-attaching portion 103 and the slider body 101 as shown in FIG. 10.

[0006] In the slider for a slide fastener shown in FIG. 10, its pull 111 is attached to the slider body 101 using a clamper 113. This pull 111 is formed of material having elasticity. The clamper 113 and a ring-like attaching portion 112 are provided with a first slit 114 and a second slit 115 for attaching the pull 111 to a pull-attaching portion 103 of the slider body 101. After the clamper 113 is inserted through the pull-attaching portion 103 by elastically deforming the clamper 113 to widen a gap of the first slit 114, the ring-like attaching portion 112 of the pull 111 is coupled with the pull-attaching portion 103 by widening a gap of the second slit 115 and then, when the first and second slits 114, 115 are elastically restored to their original states, coupling between the slider body 101 and the pull 111 is achieved. In this type of slider, when the pull 111 is pulled or twisted, the ring-like attaching portion 112 and the clamper 113 are deformed easily, so that the first and second slits 114, 115 are opened and then the pull 111 slips out of the clamper 113.

[0007] The present invention has been achieved in consideration of the above-described problems and a main object of the present invention is to provide a pull of a slider for a slide fastener in which a pull-attaching portion of the slider is fixed completely to a slider body, wherein when the pull is attached after a slider main body is made, the pull can be easily attached to the slider body without elastically deforming any members for linking the pull with the slider body and, further, the pull can be replaced freely.

[0008] Another object of the present invention is to provide a pull of a slider for a slide fastener which can bear long term use, wherein said pull can be linked with the slider body in a stable condition, and can be used in a stable condition, a pin being protected from damage even if an external force is applied to the pull, and the linking portion can be fixed easily when the pull is connected to the slider body. Moreover, another object of the present invention is to provide a pull of a slider for a slide fastener, wherein the pull-connecting member can be mounted on the slider body very easily and said connecting member can be produced in a simple way.

SUMMARY OF THE INVENTION

[0009] The above-described object can be achieved by a pull of a slider for a slide fastener, which is the basic feature of the present invention, said pull comprising a pull main body and a pull-connecting ring having an opening on a side thereof and holding portions on both sides of the opening for connecting with the pull main body. Pin holes are provided in said pull main body and said holding portions, such that the connecting ring and the pull main body are linked and fixed with each other by a pin to be inserted into the pin holes so as to pivot freely each other.

[0010] With the above-described feature, even in a slider whose pull-attaching portion is fixed on the body, the pull can be mounted easily after a slider main body is made, and a slider which meets the user's needs can be provided quickly. Further, because the connecting ring does not have to be deformed elastically, a solid connecting ring can be used. Therefore, a slider which is hardly broken can be obtained and even if the pull is damaged, that pull can be replaced easily.

[0011] In the present invention, the pull main body has the fitting protruded portion which can be fitted between the holding portions so as to be freely movable and the fitting protruded portion contains a pin hole. Consequently, space between the holding portions is filled so that the pull main body and the pull-connecting ring are more integrated and connection between the pull main body and the pull-connecting ring can be enhanced.

[0012] Further, supporting portions can be provided on both sides of the fitting protruded portion with an interval. It is preferable that pin holes, into which said pin can be inserted, are formed in said supporting portions. Consequently, the connecting portion between the pull main body and the connecting ring can be reinforced and the pin is protected from deformation or damage due to external forces such as pulling and twisting, so as to ensure smooth pivot operation.

[0013] The pin can be fixed in the pin hole provided in the fitting protruded portion of the pull main body or in the pin holes provided in the holding portions of the connecting ring, or can be fixed in the pin holes provided in the supporting portions of the pull main body. With such a feature, the pin for connecting the pull-connecting ring and the pull main body can be fixed firmly, thereby finishing a highly durable pull. Moreover, in the present invention, it is preferable that the connecting ring consists of a die-cast product in which the opening has a size not smaller than the thickness or the width of a pull-attaching portion of the body. With such a feature, the pull-connecting ring can be attached to the pull-attaching portion easily and further, mass production of solid connecting rings can be realized.

BRIEF DESCRIPTION OF THE DRAWINGS

[0014]FIG. 1 is a front view of a slider having a pull.

[0015]FIG. 2 is a side view of the same slider.

[0016]FIG. 3 is a partially broken front view showing a process of attaching a connecting ring of the same slider.

[0017]FIG. 4 is a side view showing the same process.

[0018]FIG. 5 is an exploded front view of the same slider.

[0019]FIG. 6 is an enlarged front view of a linking portion between the connecting ring and a pull main body in the same slider.

[0020]FIG. 7 is an enlarged front view showing a modification of a connecting portion of the same slider.

[0021]FIG. 8 is an enlarged front view showing another modification of the connecting portion of the same slider.

[0022]FIG. 9 is a partially cutout front view showing a modification of the connecting ring and pull main body of the same slider.

[0023]FIG. 10 is a perspective view of a slider having a well-known connecting ring.

DESCRIPTION OF EMBODIMENTS

[0024] Hereinafter, embodiments of a pull of a slider for a slide fastener of the present invention will be described concretely with reference to the drawings.

[0025] A pull 2 of a slider for a slide fastener of the present invention is formed by combining a pull-connecting ring 4, a pull main body 10 and a pin 15, and is attached to a pull-attaching portion 3 in which both ends of an attaching lever 9 are fixed to a top face of an upper blade 20 of a slider body 1. Therefore, this slider is a post-installed type in which the pull 2 is attached to the pull-attaching portion 3 after the slider main body is made, said pull-attaching portion 3 being formed integrally on the body 1 of the slider.

[0026] According to the embodiments of the slider shown in FIGS. 1 to 6, the pull main body 10 is connected to the pull-attaching portion 3 of the slider body 1 through the pull-connecting ring 4. The pull-connecting ring 4 has an opening 5, which opens to a side of its ring-like frame and the opening 5 is formed not smaller than the thickness or the width of an attaching lever 9 of the pull-attaching portion 3, so as to facilitate insertion of the attaching lever 9 through the opening 5. Meanwhile, thick holding portions 6 are provided on inner side edges of this opening 5 such that they are protruded in parallel to each other while stepped portions 8 are formed outside the holding portions 6 and the thick holding portions 6 have pin holes 7 through which a pin 15 can be inserted.

[0027] The pull main body 10 has a thick fitting protruded portion 11 which is provided in the center on a side where the pull main body connects to the pull-connecting ring 4 such that the fitting protruded portion 11 fits to the opening 5 so as to be freely movable. Protrudent thick supporting portions 12 are provided in parallel on both sides of this fitting protruded portion 11 with gaps to which the holding portions 6 fit being freely movable. These supporting portions 12 fit to the stepped portions 8 provided on the pull-connecting ring 4 so as to support the holding portions 6. The pin holes 7 through which the pin 15 can be inserted are provided through the thick supporting portions 12 on both sides and the thick fitting protruded portion 11 in the center. In the pin hole 7 provided in and penetrating the fitting protruded portion 11, convex protrusions 13 protruding inward from the inner peripheral face of the pin hole 7 is provided. These protrusions 13 press and fix the pin 15 inserted through the pin hole 7.

[0028] The pin 15, which is inserted through the pin holes 7 provided in and penetrating the holding portions 6 of the pull-connecting ring 4 and the fitting protruded portion 11 and supporting portions 12 of the pull main body 10 so as to join these members, preferably has spring property so that the diameter of the pin 15 can become smaller. As shown in FIG. 5, the pin 15 is provided with a wave-shaped expanding slot 16 in the length direction of a pipe or a straight expanding slot 16.

[0029] Preferably, the pull-connecting ring 4 and the pull main body 10 are formed by die-casting with metal such as zinc alloy. The configuration of the slider is not restricted to the pull-attaching portion in which the both ends of the attaching lever are fixed. This slider is also applicable for the pull-attaching portion whose attaching lever is a cantilever type and further, applicable for a slider with an automatic stop device having an automatic stop mechanism.

[0030] To connect the pull main body 10 to the slider body 1, first, the pull-connecting ring 4 is mounted to the pull-attaching portion 3 comprised of an attaching lever 9 formed on an upper blade 20 of the slider body 1 after the slider main body is made as shown in FIGS. 3 and 4 by passing the opening 5 between the holding portions 6 through the pull-attaching portion 3 as shown in FIG. 5. Next, the fitting protruded portion 11 and the supporting portions 12 of the pull main body 10 are inserted into the opening 5 and the stepped portions 8 of the pull-connecting ring 4. Then, pin holes 7 of these members are made to coincide with each other and the pin 15 is inserted from one side of the pin holes 7. The pin 15 is fixed with the protrusions 13 provided in the pin hole 7 of the fitting protruded portion 11, so that the pull-connecting ring 4 and the pull main body 10 are supported by this pin 15, being freely pivotable.

[0031] To replace the pull main body 10, the pin 15 just has to be removed from the pin holes 7 provided in the supporting portions 12 and the fitting protruded portion 11 of the pull main body 10 and the holding portions 6 of the pull-connecting ring 4. In this way, the pull-connecting ring 4 can be easily separated from the pull main body 10, so that the pull main body 10 or the pull-connecting ring can be replaced arbitrarily.

[0032] The protrusions for pressing and fixing the pin 15 inserted into the pin holes 7 may be provided in the pin holes 7 of the holding portions 6 of the pull-connecting ring 4 without providing the pull main body 10 with a fitting protruded portion 11, as shown in FIG. 7. Alternatively, the protrusions may be provided in the pin hole 7 of one of the holding portions 6, as shown in FIG. 8. Further, as shown in FIG. 9, the pull-connecting ring 4 is formed in a horseshoe shape and thick holding portions 6 are formed on both sides of the pull-connecting ring 4 so as to form the opening 5. Meanwhile, the pull main body 10 is provided with the fitting protruded portion 11 in the center of its linking portion, such that the fitting protruded portion 11 can be inserted into the opening 5, while no supporting portions 12 are provided on both sides of this fitting protruded portion 11. The protrusions 13 are provided in the pin hole 7 of each holding portion 6 so as to fix the pin 15. 

What is claimed is:
 1. A pull of a slider for a slide fastener comprising a pull main body and a pull-connecting ring having an opening on a side thereof and holding portions on both sides of the opening for connecting with the pull main body, in which pin holes are formed in said pull main body and said holding portions, and said pull main body and said connecting ring are linked and fixed with each other by a pin to be inserted into the respective pin holes so as to pivot freely each other.
 2. A pull of a slider for a slide fastener according to claim 1, wherein the pull main body has a fitting protruded portion which can be fitted between the holding portions such that said fitting protruded portion is freely movable, and the fitting protruded portion is provided with a pin hole.
 3. A pull of a slider for a slide fastener according to claim 2, wherein supporting portions are provided in parallel on both sides of the fitting protruded portion with an interval, and has pin holes into which the pin can be inserted.
 4. A pull of a slider for a slide fastener according to claim 2, wherein the pin is fixed in the pin hole provided in the fitting protruded portion of the pull main body.
 5. A pull of a slider for a slide fastener according to claim 1, wherein the pin is fixed in the pin holes provided in the holding portions of the connecting ring.
 6. A pull of a slider for a slide fastener according to claim 3, wherein the pin is fixed in the pin holes provided in the supporting portions of the pull main body.
 7. A pull of a slider for a slide fastener according to claim 1, wherein the connecting ring consists of a die-cast product in which the opening has a size not smaller than the thickness or the width of a pull-attaching portion of a slider body. 